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Raman signatures of type A and B influenza viruses: molecular origin of the "" inactivation mechanism mediated by micrometric silicon nitride powder.
RSC Chem Biol
January 2025
Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine Kamigyo-ku 465 Kajii-cho Kyoto 602-8566 Japan
A multiomic study of the structural characteristics of type A and B influenza viruses by means of highly spectrally resolved Raman spectroscopy is presented. Three virus strains, A H1N1, A H3N2, and B98, were selected because of their known structural variety and because they have co-circulated with variable relative prevalence within the human population since the re-emergence of the H1N1 subtype in 1977. Raman signatures of protein side chains tyrosine, tryptophan, and histidine revealed unequivocal and consistent differences for pH characteristics at the virion surface, while different conformations of two C-S bond configurations in and methionine rotamers provided distinct low-wavenumber fingerprints for different virus lineages/subtypes.
View Article and Find Full Text PDFTransit of NEAT1 and MTP11 to the plasma membrane and co-localization to vesicles support a role for exocytosis-mediated export in metal homeostasis.
Physiol Plant
January 2025
Department of Plant Molecular Biology, Biophore Building, University of Lausanne, Lausanne, Switzerland.
Understanding the role and mode of action of nutrient transporters requires information about their dynamic associations with plant membranes. Historically, apoplastic nutrient export has been associated with proteins localized at the plasma membrane (PM), while the role of endomembrane localization has been less explored. However, recent work on the PHOSPHATE 1 (PHO1) inorganic phosphate (Pi) exporter demonstrated that, although primarily localized at the Golgi and trans-Golgi network (TGN) vesicles, PHO1 does associate with the PM when clathrin-mediated endocytosis (CME) was inhibited, supporting a mechanism for Pi homeostasis involving exocytosis.
View Article and Find Full Text PDFExocyst complex component 1 (Exoc1) loss in dormant oocyte disrupts c-KIT and growth differentiation factor (GDF9) subcellular localization and causes female infertility in mice.
Cell Death Discov
January 2025
Laboratory Animal Resource Center in Trans-Border Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
A limited number of female germ cells support reproduction in many mammals. The follicle, composed of oocytes and supporting granulosa cells, forms the basis of oogenesis. Crosstalk between oocytes and granulosa cells is essential for the formation, dormancy, re-awakening, and maturation of oocytes.
View Article and Find Full Text PDFRole of Robotics in Image-Guided Trans-Arterial Interventions.
Tech Vasc Interv Radiol
December 2024
Division of Vascular and Interventional Radiology, Department of Radiology, MedStar Georgetown University Hospital, Washington, DC; Georgetown University School of Medicine, Washington, DC; Lombardi Comprehensive Cancer Center, Washington, DC. Electronic address:
The integration of robotic systems in image-guided trans-arterial interventions has revolutionized the field of Interventional Radiology (IR), offering enhanced precision, safety, and efficiency. These advancements are particularly impactful for acute conditions such as stroke, pulmonary embolism, and STEMI, where timely intervention is critical. Robotic platforms like the CorPath GRX and Magellan allow for remote navigation and catheter-based interventions, making it possible to extend specialized services to remote and underserved areas.
View Article and Find Full Text PDFp53 mediated regulation of LINE1 retrotransposon derived R-loops.
J Biol Chem
January 2025
Department of Biological Sciences, Indian Institute of Science Education and Research Berhampur, India. Electronic address:
Long Interspersed Nuclear Element 1 (LINE1/L1) retrotransposons, which comprise 17% of the human genome, typically remain inactive in healthy somatic cells but are reactivated in several cancers. We previously demonstrated that p53 silences L1 transposons in human somatic cells, potentially acting as a tumor-suppressive mechanism. However, the precise molecular mechanisms underlying p53-mediated repression of L1 and its life cycle intermediates remain unclear.
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